Cloud Storage, backup is often the easiest and first cloud application for many businesses. Archive is a natural step. And once the utility and value are understood, a common follow-on step is to reduce the cost and overhead of maintaining offline archive storage such as tape libraries by directly loading them into archival storage. Cloud Storage offers four storage classes. Customers can associate each of their buckets with the storage class most appropriate for its use case. All of the storage classes are accessed in analogous ways using the Cloud Storage API, and all offer millisecond access times. All storage classes incur a cost per gigabyte of data storage per month, and egress and data transfer charges may apply. In addition to those charges, nearline storage also incurs an access fee per gigabyte of data read, and coldline storage incurs a higher fee per gigabyte of data read. See the Cloud Storage pricing page for more information. First, temporary data, maybe you want to use a local disk. Standard and regional HDDs and SSDs are now supported. Regional versions have zonal redundancy.